diff options
| author | Charl Coetzee <ccoetzee@interalia.ca> | 2006-02-09 11:48:21 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2006-03-22 10:28:39 +0100 |
| commit | ba22429d3ea3b9945735b88d4dde74711171ffab (patch) | |
| tree | 7b25c97061ca0c218e374620f341d5e988d48690 /sound/pci | |
| parent | 50dabc2d1139ba01362418874152aeeb591a4544 (diff) | |
[ALSA] ac97 - Added a codec patch for LM4550
Modules: AC97 Codec
Added a codec patch for LM4550. It sets up a static volume resolution
table.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/ac97/ac97_codec.c | 2 | ||||
| -rw-r--r-- | sound/pci/ac97/ac97_patch.c | 31 | ||||
| -rw-r--r-- | sound/pci/ac97/ac97_patch.h | 1 |
3 files changed, 33 insertions, 1 deletions
diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c index 124c1bc4cb9..38b6c65d40c 100644 --- a/sound/pci/ac97/ac97_codec.c +++ b/sound/pci/ac97/ac97_codec.c @@ -150,7 +150,7 @@ static const struct ac97_codec_id snd_ac97_codec_ids[] = { { 0x49544561, 0xffffffff, "IT2646E", patch_it2646, NULL }, { 0x4e534300, 0xffffffff, "LM4540,43,45,46,48", NULL, NULL }, // only guess --jk { 0x4e534331, 0xffffffff, "LM4549", NULL, NULL }, -{ 0x4e534350, 0xffffffff, "LM4550", NULL, NULL }, +{ 0x4e534350, 0xffffffff, "LM4550", patch_lm4550, NULL }, // volume wrap fix { 0x50534304, 0xffffffff, "UCB1400", NULL, NULL }, { 0x53494c20, 0xffffffe0, "Si3036,8", mpatch_si3036, mpatch_si3036, AC97_MODEM_PATCH }, { 0x54524102, 0xffffffff, "TR28022", NULL, NULL }, diff --git a/sound/pci/ac97/ac97_patch.c b/sound/pci/ac97/ac97_patch.c index 8bc79cbe321..5c03b4b6f5c 100644 --- a/sound/pci/ac97/ac97_patch.c +++ b/sound/pci/ac97/ac97_patch.c @@ -2825,3 +2825,34 @@ int mpatch_si3036(struct snd_ac97 * ac97) snd_ac97_write_cache(ac97, 0x68, 0); return 0; } + +/* + * LM 4550 Codec + * + * We use a static resolution table since LM4550 codec cannot be + * properly autoprobed to determine the resolution via + * check_volume_resolution(). + */ + +static struct snd_ac97_res_table lm4550_restbl[] = { + { AC97_MASTER, 0x1f1f }, + { AC97_HEADPHONE, 0x1f1f }, + { AC97_MASTER_MONO, 0x001f }, + { AC97_PC_BEEP, 0x001f }, /* LSB is ignored */ + { AC97_PHONE, 0x001f }, + { AC97_PHONE, 0x001f }, + { AC97_MIC, 0x001f }, + { AC97_LINE, 0x1f1f }, + { AC97_CD, 0x1f1f }, + { AC97_VIDEO, 0x1f1f }, + { AC97_AUX, 0x1f1f }, + { AC97_PCM, 0x1f1f }, + { AC97_REC_GAIN, 0x0f0f }, + { } /* terminator */ +}; + +int patch_lm4550(struct snd_ac97 *ac97) +{ + ac97->res_table = lm4550_restbl; + return 0; +} diff --git a/sound/pci/ac97/ac97_patch.h b/sound/pci/ac97/ac97_patch.h index 5060cb6f2ec..adcaa04586c 100644 --- a/sound/pci/ac97/ac97_patch.h +++ b/sound/pci/ac97/ac97_patch.h @@ -59,3 +59,4 @@ int patch_vt1616(struct snd_ac97 * ac97); int patch_vt1617a(struct snd_ac97 * ac97); int patch_it2646(struct snd_ac97 * ac97); int mpatch_si3036(struct snd_ac97 * ac97); +int patch_lm4550(struct snd_ac97 * ac97); |